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https://www.readbyqxmd.com/read/29709169/influence-of-storage-on-the-stability-of-toxic-pyrrolizidine-alkaloids-and-their-n-oxides-in-peppermint-tea-hay-and-honey
#1
Florian Kaltner, Michael Rychlik, Manfred Gareis, Christoph Gottschalk
1,2-dehydropyrrolizidine alkaloids (PA) and PA-N-oxides (PANO) are phytotoxins, which presumably occur in more than 6000 plant species worldwide. Plants containing PA/PANO are responsible for various food and feed poisonings recorded for decades. Main reasons of exposition of consumers and livestock are contaminations of food and animal feed with parts, seeds, pollen or nectar of PA containing plants. Concerning stability, effects of processing on PA were mainly investigated in the past. The current study examined the behavior of PA/PANO in unprocessed matrices peppermint tea, hay and honey during storage...
April 30, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29708847/preliminary-study-on-the-antibacterial-activity-of-essential-oils-alone-and-in-combination-with-gentamicin-against-extended-spectrum-%C3%AE-lactamase-producing-and-new-delhi-metallo-%C3%AE-lactamase-1-producing-klebsiella-pneumoniae-isolates
#2
Paweł Kwiatkowski, Agata Pruss, Bartłomiej Grygorcewicz, Bartosz Wojciuk, Barbara Dołęgowska, Stefania Giedrys-Kalemba, Ewa Kochan, Monika Sienkiewicz
AIM: The aim of the study was to investigate possible synergistic effects between several selected, commercially available essential oils and gentamicin against extended-spectrum β-lactamase (ESBL)-producing and New Delhi metallo-β-lactamase-1 (NDM-1)-producing Klebsiella pneumoniae isolates. MATERIALS AND METHODS: ESBLs production was confirmed by double-disk synergy test. Isolates positive for blaNDM-1 gene were found among the tested strains. K. pneumoniae ATCC® BAA-1705™ strain was used as a control...
April 30, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29676119/-optimize-preparation-of-compound-licorice-microemulsion-with-d-optimal-design
#3
Shu-Wei Ma, Yong-Jie Wang, Cheng Chen, Yue Qiu, Qing Wu
In order to increase the solubility of essential oil in compound licorice microemulsion and improve the efficacy of the decoction for treating chronic eczema, this experiment intends to prepare the decoction into microemulsion. The essential oil was used as the oil phase of the microemulsion and the extract was used as the water phase. Then the microemulsion area and maximum ratio of water capacity was obtained by plotting pseudo-ternary phase diagram, to determine the appropriate types of surfactant and cosurfactant, and Km value-the mass ratio between surfactant and cosurfactant...
March 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29626813/elevated-co-2-induces-a-global-metabolic-change-in-basil-ocimum-basilicum-l-and-peppermint-mentha-piperita-l-and-improves-their-biological-activity
#4
Soad Al Jaouni, Ahmed M Saleh, Mohammed A M Wadaan, Wael N Hozzein, Samy Selim, Hamada AbdElgawad
Many studies have discussed the influence of elevated carbon dioxide (eCO2 ) on modeling and crop plants. However, much less effort has been dedicated to herbal plants. In this study, a robust monitoring for the levels of 94 primary and secondary metabolites and minerals in two medicinal herbs, basil (Ocimum basilicum L.) and peppermint (Mentha piperita L.), grwon under both ambient (aCO2 , 360 ppm) and eCO2 (620 ppm) was performed. We also assessed how the changes in herbal tissue chemistry affected their biological activity...
March 29, 2018: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29575822/antimicrobial-activity-of-selected-essential-oils-against-streptococcus-suis-isolated-from-pigs
#5
Fabiana C de Aguiar, Ana Lucía Solarte, Carmen Tarradas, Inmaculada Luque, Alfonso Maldonado, Ángela Galán-Relaño, Belén Huerta
The inhibitory potential by contact and vapor of basil, cinnamon, clove, peppermint, oregano, rosemary, common thyme, and red thyme essential oils (EOs) against 20 strains of Streptococcus suis was determined by the disk diffusion test. The broth microdilution method was used to determine the minimal inhibitory and minimal bactericidal concentration (MIC and MBC) of the four selected oils. Furthermore, the bactericidal power (ratio MBC/MIC) was calculated. The EOs with the major potential in the disk diffusion method were red thyme, common thyme, oregano, and cinnamon (∅ mean 16...
March 24, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29523018/aromatherapy-for-treatment-of-postoperative-nausea-and-vomiting
#6
REVIEW
Sonia Hines, Elizabeth Steels, Anne Chang, Kristen Gibbons
BACKGROUND: Postoperative nausea and vomiting (PONV) is a common, unpleasant phenomenon and current therapies are not always effective for all patients. Aromatherapy has been suggested as an addition to the available treatment strategies. This review was originally published in 2012 and updated in 2017. OBJECTIVES: The main objective was to establish the efficacy and safety of aromatherapy comparable to standard pharmacological treatments for PONV in adults and children...
March 10, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29517825/combination-of-essential-oil-and-ciprofloxacin-to-inhibit-eradicate-biofilms-in-multidrug-resistant-klebsiella-pneumoniae
#7
S H Mohamed, M S M Mohamed, M S Khalil, M Azmy, M I Mabrouk
AIM: This study aimed to test biofilm inhibition activities of each of essential oils (EOs), main compounds of EOs and enzymes against pathogenic Klebsiella pneumoniae. METHODS AND RESULTS: The effect of seven EOs and three enzymes was tested on formation and eradication of K. pneumoniae biofilm. Peppermint oil showed a robust biofilm inhibitory effect, causing inhibition that ranged from 69·2 to 98·2% at 5 μl ml-1 . Thyme oil was found to have the best biofilm eradication ability, causing eradication that ranged from 80·1 to 98·0% at 10 μl ml-1 ...
March 8, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29486662/polycyclic-aromatic-hydrocarbons-in-teas-using-quechers-and-hplc-fld
#8
Silvia A V Tfouni, Raquel M Reis, Kamille Kamikata, Fernanda M L Gomes, Marcelo A Morgano, Regina P Z Furlani
Polycyclic aromatic hydrocarbons (PAHs) are food-processing contaminants considered to be carcinogenic and genotoxic. Due to its drying process stage, teas may be contaminated with PAHs. The aim of the study was to validate an analytical method involving QuEChERS and HPLC-FLD for the determination of PAH4 in teas and evaluate the contamination levels in 10 different types of teas from Brazil. Recoveries varied from 54% to 99% and relative standard deviations from 1% to 21%. Limits of detection and quantification were from 0...
June 2018: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/29481807/gonadal-hormones-but-not-sex-affect-the-acquisition-and-maintenance-of-a-go-no-go-odor-discrimination-task-in-mice
#9
T Kunkhyen, E Perez, M Bass, A Coyne, M J Baum, J A Cherry
In mice, olfaction is crucial for identifying social odors (pheromones) that signal the presence of suitable mates. We used a custom-built olfactometer and a thirst-motivated olfactory discrimination Go/No-Go (GNG) task to ask whether discrimination of volatile odors is sexually dimorphic and modulated in mice by adult sex hormones. Males and females gonadectomized prior to training failed to learn even the initial phase of the task, which involved nose poking at a port in one location obtaining water at an adjacent port...
April 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29454497/uptake-of-nicotine-from-discarded-cigarette-butts-a-so-far-unconsidered-path-of-contamination-of-plant-derived-commodities
#10
Dirk Selmar, Alzahraa Radwan, Neama Abdalla, Hussein Taha, Carina Wittke, Ahmed El-Henawy, Tarek Alshaal, Megahed Amer, Maik Kleinwächter, Melanie Nowak, Hassan El-Ramady
This study aimed to elucidate the origin of the widespread nicotine contamination of plant-derived commodities, by conducting field experiments with various herbs and spice plants. By scattering tobacco and cigarette butts on the field and subsequent nicotine analyses of the acceptor plants, we verified that the alkaloid is leached out into the soil and is taken up by the crop plants. This path of contamination pertains even when there is only one cigarette butt per square meter. Even such minor pollution results - at least in the case of basil and peppermint - in considerable high nicotine contaminations, which exceed the maximum residue level by more than 20-fold...
February 14, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29450151/comparison-of-antimicrobial-activities-of-natural-essential-oils-and-synthetic-fragrances-against-selected-environmental-pathogens
#11
Paula L Vieira-Brock, Brent M Vaughan, David L Vollmer
Plant essential oils (EOs) are known to inhibit the growth of bacteria and fungi. Whether these antimicrobial effects are comparable to synthetic household products is less clear. Furthermore, limited research is available on the potential additive effect of blending EOs. In this investigation, a new EO blend containing orange, patchouli, peppermint, and clary sage was compared to its individual single oils and to three household products-air freshener, liquid soap, and body spray-for their ability to inhibit the growth of Staphylococcus aureus, Streptococcus pneumoniae, Pseudonomas aeruginosa, and Aspergillus brasiliensis in the disc-diffusion assay...
December 2017: Biochimie open
https://www.readbyqxmd.com/read/29426426/one-step-sample-preparation-for-convenient-examination-of-volatile-monoterpenes-and-phenolic-compounds-in-peppermint-leaves-using-deep-eutectic-solvents
#12
Kyung Min Jeong, Yan Jin, Da Eun Yoo, Se Young Han, Eun Mi Kim, Jeongmi Lee
Deep eutectic solvents (DESs) were investigated as an extraction medium for one-step sample preparation for chemical characterization of peppermint (Mentha piperita L.). Rather than applying discontinuous, time-consuming extraction methods to prepare two types of extracts, peppermint leaves were extracted efficiently into a DES, which was composed of choline chloride and d-(+)-glucose at a 5:2 molar ratio. The produced peppermint extracts contained volatile monoterpenes and phenolics at levels sufficient for direct chemical examination of peppermint leaves...
June 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29383802/reversal-of-visceral-hypersensitivity-in-rat-by-menthacarin-%C3%A2-a-proprietary-combination-of-essential-oils-from-peppermint-and-caraway-coincides-with-mycobiome-modulation
#13
S Botschuijver, O Welting, E Levin, D Maria-Ferreira, E Koch, R C Montijn, J Seppen, T B M Hakvoort, F H J Schuren, W J de Jonge, R M van den Wijngaard
BACKGROUND: Irritable bowel syndrome (IBS) is a common gastrointestinal disorder associated with altered gastrointestinal microflora and increased nociception to colonic distension. This visceral hypersensitivity can be reversed in our rat maternal separation model by fungicides. Menthacarin® is a proprietary combination of essential oils from Mentha x piperita L. and Carum carvi. Because these oils exhibit antifungal and antibacterial properties, we investigated whether Menthacarin® can reverse existing visceral hypersensitivity in maternally separated rats...
January 31, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29380567/-metabolic-engineering-of-e-%C3%AE-farnesene-synthase-genes-for-aphid-resistant-genetically-modified-plants
#14
Dianyong Jia, Shiqing Gao, Pengfei Duan, Jibao Chen, Fengxia Tian, Xiudao Yu
Aphids are major agricultural pests that cause significant yield losses of crops each year. (E)-β-farnesene (EβF), as the main component of the aphid alarm pheromones, can interrupt aphid feeding and cause other conspecies in the vicinity to become agitated or disperse from their host plant. Furthermore, EβF can function as a kairomone in attracting aphid predators. EβF synthase genes, which encode enzymes that convert farnesyl diphosphate (FPP) to the acyclic sesquiterpene EβF, have been isolated and characterized from peppermint (Mentha × piperita and Mentha asiatica), Yuzu (Citrus junos), Douglas fir (Pseudotsuga menziesii), sweet wormwood (Artemisia annua) and chamomile (Matricaria recutita), respectively...
January 25, 2018: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/29372567/review-article-the-physiological-effects-and-safety-of-peppermint-oil-and-its-efficacy-in-irritable-bowel-syndrome-and-other-functional-disorders
#15
REVIEW
B P Chumpitazi, G L Kearns, R J Shulman
BACKGROUND: Peppermint oil has been used for centuries as a treatment for gastrointestinal ailments. It has been shown to have several effects on gastrointestinal physiology relevant to clinical care and management. AIM: To review the literature on peppermint oil regarding its metabolism, effects on gastrointestinal physiology, clinical use and efficacy, and safety. METHODS: We performed a PubMed literature search using the following terms individually or in combination: peppermint, peppermint oil, pharmacokinetics, menthol, oesophagus, stomach, small intestine, gallbladder, colon, transit, dyspepsia, nausea, abdominal pain, and irritable bowel syndrome...
March 2018: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29336734/the-relationship-between-women-s-characteristics-and-herbal-medicines-use-during-pregnancy
#16
Fatemeh Abdollahi, Jamshid Yazdani Cherati
The use of herbal medicines (HM) has been increasing worldwide. This cross-sectional study investigated the prevalence of and characteristics related to use of HM among 320 pregnant women. Participants were admitted to Mazandaran-based hospitals' postnatal wards from March to June 2015. Data were collected via a self-report questionnaire, including herbs used during pregnancy and demographic, socioeconomic and pregnancy-related factors. Nearly half (48.4%) of the women reported taking one or more HM during pregnancy...
January 16, 2018: Women & Health
https://www.readbyqxmd.com/read/29297835/microsporidiosis-in-peppermint-shrimp-decapoda-hippolytidae-lysmata-spp
#17
Elise E B LaDouceur, Brian G Murphy
Microsporidia are a diverse, parasitic phylum closely related to fungi. They infect a broad range of host species and tissues. This report describes microsporidiosis infection in a captive, wild-caught peppermint shrimp ( Lysmata spp.). The animal was found dead in its enclosure approximately 5 days after molting. Grossly, the skeletal musculature was diffusely swollen, opaque, and pale tan to white. Histologically, skeletal myofibers were replaced by large aggregates of sporophorous vesicles containing up to eight spores and earlier stages of sporogony...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29273467/the-effect-of-premedication-with-peppermint-oil-capsules-colpermin-prior-to-colonoscopy-a-double-blind-randomized-placebo-controlled-trial
#18
Hassan Al Moussawi, Mariam Al Khatib, Malak El Ahmar, Houssam Al Masri, Ali Leddy, Tamer Akel, Ali Khalil
BACKGROUND AND STUDY AIMS: Colonoscopy is the cornerstone of diagnosing colonic diseases. Investigators have evaluated the effectiveness of antispasmodic agents in colonoscopy with conflicting evidence. The aim of this study is to determine the efficacy of enteric coated peppermint oil capsules (Colpermin®), an antispasmodic agent, on outcomes during colonoscopy. PATIENTS AND METHODS: A total of 80 patients undergoing elective colonoscopy were recruited and randomized in a double blinded fashion to receive either placebo or peppermint oil capsules administered 4 h prior to the procedure...
December 2017: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29250985/green-synthesis-of-silver-nanoparticles-using-thymbra-spicata-l-var-spicata-zahter-aqueous-leaf-extract-and-evaluation-of-their-morphology-dependent-antibacterial-and-cytotoxic-activity
#19
Fatih Erci, Rabia Cakir-Koc, Ibrahim Isildak
Silver (Ag) nanoparticles (NPs) were green synthesized at room temperature using different concentrations of the Thymbra spicata L. var. spicata (Zahter) aqueous leaf extracts for the first time. With the synthesis of AgNPs using the leaf extract of Cynara scolymus (Artichoke) and Mentha piperita (Peppermint), the biological activities of the nanoparticles synthesized using leaf extract of three economically significant plants have been studied comparatively. Nanoparticles were characterized by different spectroscopic and microscopic analysis...
December 17, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29247770/apigenin-promotes-trail-mediated-apoptosis-regardless-of-ros-generation
#20
Chang-Hee Kang, Ilandarage Menu Neelaka Molagoda, Yung Hyun Choi, Cheol Park, Dong-Oh Moon, Gi-Young Kim
Apigenin is a bioactive flavone in several herbs including parsley, thyme, and peppermint. Apigenin possesses anti-cancer and anti-inflammatory properties; however, whether apigenin enhances TRAIL-mediated apoptosis in cancer cells is unknown. In the current study, we found that apigenin enhanced TRAIL-induced apoptosis by promoting caspase activation and death receptor 5 (DR5) expression and a chimeric antibody against DR5 completely blocked the apoptosis. Apigenin also upregulated reactive oxygen species (ROS) generation; however, intriguingly, ROS inhibitors, glutathione (GSH) or N-acetyl-l-cysteine (NAC), moderately increased apigenin/TRAIL-induced apoptosis...
January 2018: Food and Chemical Toxicology
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